Jaren Lockhart was reported missing on June 6, 2012. Her torso washed ashore on a beach in Bay St. Louis, Miss., and other parts of her severed body washed up days later. Authorities in Hancock County, Miss., are looking for her killer. This timeline follows the events of the investigation.

Terry Speaks, a suspect in the killing and dismemberment of Jaren Lockhart, admitted to killing a Louisiana woman, dismembering her with his girlfriend Margaret Sanchez and dumping the victim’s remains into a body of water, according to a recent arrest report.

Margaret Sanchez, a woman previously identified in connection with the murder of Jaren Lockhart, was arrested Wednesday morning and is expected to be charged with a count of second-degree murder, a source close to the investigation told the WDSU I-Team.

Sanchez was arrested in the killing. She was booked on charges of second-degree murder and obstruction of justice. Her bond was set at $750,000 -- $250,000 for the obstruction charge and $500,000 on the murder charge. She is being held in Jefferson Parish.

Speaks is currently locked up at the Federal Correctional Institute in Otisville, New York on unrelated charges.

Images: Jaren Lockhart investigation timeline

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Jaren Lockhart was reported missing on June 6, 2012. Her torso washed ashore on a beach in Bay St. Louis, Miss., and other parts of her severed body washed up days later. Authorities in Hancock County, Miss., are looking for her killer. This timeline follows the events of the investigation.